Sobre Hazem Saleh has 12+ years of experience in Cloud and Mobile technologies. During his technical career, Hazem worked in developing numerous mobile app products. Hazem is an Open source enthusiast, an Apache PMC member and a person who spent many years of his life writing open source software. Besides being an author of five technical books about mobile development and software engineering best practices, Hazem is also an author of many technical articles, a developerWorks contributing author and a technical speaker in i18n conferences such as Droidcon, AnDevCon, ApacheCon, Geecon, JavaLand, and JavaOne.